PRODUCTS
|
Magnesia Refractory
Products
Magnesia-Chrome Brick, High-Chrome Brick
|
Properties
|
Magnesia-chrome brick
|
High-chrome brick
|
|
NMC-8
|
NMC-12
|
NMC-16
|
NMC-20
|
NMC-25
|
NMC-30
|
|
MgO, Min. (%)
|
60
|
55
|
45
|
40
|
35
|
30
|
|
Cr2O3, Min. (%)
|
8
|
12
|
16
|
20
|
25
|
30
|
|
0.2MPa refractoriness under load, Min. (°C)
|
1530
|
1550
|
1550
|
1550
|
1640
|
1660
|
|
Cold crushing strength, Min. (MPa)
|
30
|
30
|
30
|
30
|
30
|
30
|
|
Apparent porosity, Max. (%)
|
21
|
21
|
23
|
23
|
21
|
21
|
Foresterite Brick, Rebounded-Fused Magnesia Brick
|
Properties
|
Foresterite brick
|
Rebounded-fused magnesia brick
|
|
NLMG-60A
|
NLMG-60B
|
NLDM-95
|
NDM-97
|
|
MgO, Min. (%)
|
60
|
60
|
95
|
97
|
|
SiO2, Min. (%)
|
20
|
20
|
≥2.0
|
≥1.5
|
|
0.2MPa refractoriness under load, Min. (°C)
|
1650
|
1600
|
1700
|
1700
|
|
Cold crushing strength, Min. (MPa)
|
40
|
35
|
45
|
45
|
|
Apparent porosity, Max. (%)
|
20
|
21
|
18
|
18
|
|
Thermal shock resistance
(9500°C-air), Min. (times)
|
10
|
7
|
--
|
--
|
|
Bulk density, Min. (g/cm3)
|
2.70
|
2.65
|
--
|
--
|
Semi-Rebounded Magnesia-Chrome Brick
|
Properties
|
Semi re-bounded magnesia-chrome brick
|
MgO-Al2O3-Cr2O3 brick
|
|
NLBMGe-16
|
NLBMGe-16B
|
NLBMGe-20A
|
NLBMGe-20B
|
NLMLGe-80
|
NLMGeL-55
|
|
MgO, Min. (%)
|
55
|
55
|
50
|
50
|
80
|
55
|
|
Al2O3, Min. (%)
|
--
|
--
|
--
|
--
|
7
|
7
|
|
Cr2O3, Min. (%)
|
16
|
16
|
20
|
20
|
3
|
10
|
|
SiO2, Max. (%)
|
2.5
|
3.5
|
2.5
|
3.5
|
--
|
--
|
|
0.2MPa refractoriness under load, Min. (°C)
|
1700
|
1690
|
1700
|
1690
|
1680
|
1600
|
|
Cold crushing strength, Min. (MPa)
|
35
|
35
|
35
|
35
|
40
|
40
|
|
Apparent porosity, Max. (%)
|
16
|
16
|
16
|
16
|
18
|
18
|
|
Thermal shock resistance
(1100°C water), Max. (times)
|
--
|
--
|
--
|
--
|
10
|
8
|
Direct-Bounded Magnesia-Chrome Brick, Table 1
|
Properties
|
NLZM Ge-8A
|
NLZM Ge-8B
|
NLZM Ge-8C
|
NLZM Ge-12A
|
NLZM Ge-12B
|
NLZM Ge-12C
|
|
MgO, Min. (%)
|
70
|
70
|
68
|
65
|
65
|
63
|
|
Cr2O3, Min. (%)
|
8
|
8
|
8
|
12
|
12
|
12
|
|
SiO2, Max. (%)
|
1.5
|
2.5
|
3.0
|
1.5
|
2.5
|
3.0
|
|
0.2MPa refractoriness under load, Min. (°C)
|
1700
|
1700
|
1650
|
1700
|
1700
|
1650
|
|
Cold crushing strength, Min. (MPa)
|
40
|
40
|
40
|
40
|
40
|
40
|
|
Apparent porosity, Max. (%)
|
18
|
18
|
19
|
18
|
18
|
19
|
Direct-Bounded Magnesia-Chrome Brick, Table 2
|
Properties
|
NDMC-12
|
NDMC-98
|
NDMC-9A
|
NDMC- 6
|
NDMC-4
|
NLZGeM-18
|
NLZGeM-20
|
NLZGeM-26
|
|
MgO, Min. (%)
|
60
|
70
|
70
|
75
|
801
|
55
|
58
|
45
|
|
Cr2O3, Min. (%)
|
12
|
9
|
9
|
6
|
4
|
--
|
20
|
26
|
|
SiO2, Max. (%)
|
3.2
|
3.0
|
2.8
|
2.8
|
2.5
|
1.5
|
1.5
|
--
|
|
0.2MPa refractoriness under load, Min. (°C)
|
1580
|
1580
|
1600
|
1600
|
1600
|
1700
|
1700
|
1700
|
|
Cold crushing strength, Min. (MPa)
|
35
|
40
|
40
|
40
|
40
|
40
|
35
|
35
|
|
Apparent porosity, Max. (%)
|
19
|
19
|
19
|
18
|
18
|
18
|
18
|
21
|
|
Thermal shock resistance
(1100°C water), Min. (times)
|
4
|
4
|
4
|
4
|
4
|
--
|
20
|
--
|
|
Bulk density, Min. (g/cm3)
|
3.0
|
2.98
|
2.98
|
2.95
|
2.93
|
--
|
--
|
--
|
Rebounded-Fused Magnesia-Chrome Brick
|
Properties
|
MgO, Min. (%)
|
Cr2O3, Min. (%)
|
SiO2, Max. (%)
|
Apparent porosity, Max. (%)
|
0.2MPa refractoriness under load, Min. (°C)
|
Cold crushing strength, Min. (MPa)
|
|
Re-bounded Fused-Magnesia-Chrome Brick
|
|
NLDMGe-26
|
45
|
26
|
2
|
18
|
1700
|
35
|
|
NLDMGe-20A
|
50
|
20
|
2
|
16
|
1700
|
35
|
|
NLDMGe-20B
|
50
|
20
|
3
|
16
|
1700
|
35
|
|
NLDMGe-16A
|
55
|
16
|
2
|
16
|
1700
|
35
|
|
NLDMGe-16B
|
50
|
16
|
3
|
16
|
1700
|
35
|
|
NLDMGe-12A
|
60
|
12
|
2
|
16
|
1700
|
35
|
|
NLDMGe-12B
|
60
|
12
|
3
|
16
|
1700
|
35
|
|
Large re-bounded fused-magnesia-chrome brick unit weight:18kg, Min.
|
|
NLDRMGe-12
|
60
|
18
|
3.5
|
19
|
1670
|
30
|
|
NLDRMGe-16
|
55
|
16
|
4
|
19
|
1670
|
30
|
|
